{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the specific types of consensus algorithms in blockchain, and how do they compare in terms of advantages and disadvantages?","a":"Proof of Work (PoW): A consensus algorithm adopted by cryptocurrencies such as Bitcoin, Ethereum,  and Litecoin. The advantage is its good randomness and fairness, but the disadvantage is its high energy consumption and increasing mining difficulty."}]}],"pr":"5626c000482386718eff29ed66100bc8d22b28e6a637759eb8b86aa69eba5c9f"}